Dial up usage entry suddenly appeared

I have the paid version installed on my Desktop and 3 laptops on my home network. All is working perfectly except there has suddenly appeared a "Dial up" entry for yesterday 01/30/17. I don't have any dial up capability! No dial up number, no modem connections, nothing. Any ideas? Also the U/L and D/L figures are grossly over the top.

Yes I used VPN on the machine showing Dial up usage. So I guess this is normal. Interesting that Screen shot of "Weekly" shows the dial up and inflated usage, whereas "dial up only" shows zeros. I have checked with my ISP and they say there is no sign of large data down/upload for that day.
Sorry but I cant see how to insert screen shots into this message, but I guess you see what I mean by explanation above.